Ref a game sometime. Watch the clown take his “shirt” off incenting the other team. Watch the season ending cheap shot that results from it and then go to that teams coach and explain how the match got out of control.

Offiating is hard enough without having things that are easy to control such as leaving your “ shirt on”.

It’s a simple rule to understand and officiate and its one that was probably pushed by refs to keep things calmer.